I don't eat cereal too often these days, but this thread has me craving for some. Might just have to run to the store to pick up some milk and a couple of boxes later.
As for favorite kinds: I love Captain Crunch. Trix and Fruity Pebbles is really good too. I also really like Reeses Puffs. My all time favorite was Oreo O's though. I was so bummed when they discontinued it.